Mathematics
Chords AB and CD of a circle intersect each other at point O such that OA : OC = 4 : 7. Then OB : OD is equal to :
4 : 7
5 : 4
7 : 4
4 : 5
Related Questions
In the given figure, O is the center of the circumcircle ABC. Tangents A and C intersect at P. Given angle AOB = 140° and angle APC = 80°; find the angle BAC.
In the given figure, PQ is a tangent to the circle at A. AB and AD are bisectors of ∠CAQ and ∠PAC. If ∠BAQ = 30°, prove that : BD is diameter of the circle.
If ∠PAC : ∠PCA = 4 : 5, ∠P is :
40°
60°
105°
45°
AC is a tangent to the given circle which touches the circle at point B. If ∠EBC = 45°; angle EDB is equal to :
45°
90°
125°
135°
